What to Expect From the Next U.S. Total Solar Eclipse
The next total solar eclipse visible across a narrow path within the United States occurs on April 8, 2024. A total solar eclipse happens when the Moon completely covers the Sun, turning day into twilight for a few minutes along a specific track. Unlike partial eclipses, where the Moon only blocks part of the Sun, a total eclipse reveals the Sun’s outer atmosphere and can produce striking changes in temperature, shadow bands, and visible planets. This guide explains when and where the next total eclipse occurs, how it works, how to view it safely, and how you can prepare.
How a Total Solar Eclipse Works
A solar eclipse occurs when the New Moon passes directly between the Sun and Earth, casting a shadow on our planet. Because the Moon’s orbit is tilted relative to Earth’s orbit, most New Moons pass above or below the Sun from our perspective. When the alignment is precise, the Moon can fully cover the Sun’s bright surface, or photosphere, leaving only the faint outer atmosphere, called the corona, visible. Totality—the period of complete coverage—can last up to about 7.5 minutes but is typically much shorter for any single location. The path where the Moon’s central shadow, or umbra, reaches Earth’s surface is narrow, while a broader area experiences a partial eclipse, where only part of the Sun is obscured.
Key eclipse phases
- First contact: The Moon’s edge begins to overlap the Sun.
- Second contact: Totality begins as the last bright edge of the Sun disappears.
- Totality: The Moon fully covers the Sun; the corona becomes visible.
- Third contact: Totality ends as the Sun reappears from behind the Moon.
- Fourth contact: The Moon fully moves away from the solar disk.
Date, Path, and Timing of the Next U.S. Total Eclipse
The next total solar eclipse in the United States after 2024 will be August 23, 44, and 64 years later, depending on where you are in the country. For most people, the headline event is the April 8, 2024, total solar eclipse, which will cross North America on a northeastward path. Totality will be visible from parts of Mexico, the United States, and Canada. The duration of totality varies by location but can reach up to about four minutes in some areas of the path. People outside the path of totality will see a partial eclipse, where the Moon covers only a portion of the Sun.
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Eclipse type | Total solar eclipse | NASA eclipse calculations |
| Date | April 8, 2024 | Official eclipse bulletins |
| Path width at greatest | Approximately 185 kilometers (115 miles) | NASA eclipse maps |
| Maximum duration of totality | Up to about 4 minutes 28 seconds | NASA eclipse duration tables |
| Next U.S. total eclipse after 2024 | August 23, 2044 | NASA eclipse predictions |
Where the Path of Totality Will Fall
The 2024 total solar eclipse path crosses through parts of Mexico, 13 U.S. states, and eastern Canada. In the United States, the path enters through Texas, moves through Oklahoma, Arkansas, Missouri, Illinois, Kentucky, Tennessee, Michigan, Indiana, Ohio, Pennsylvania, New York, Vermont, New Hampshire, and Maine before crossing into Canada. Cities such as Carbondale in Illinois and Cleveland in Ohio experience long durations of totality. People hundreds of miles to the north and south will see a partial eclipse, with coverage decreasing as distance from the centerline increases. Exact local circumstances vary, so it is important to check predictions for your specific location using authoritative sources.
How to View the Eclipse Safely
Never look directly at the uneclipsed or partially eclipsed Sun without proper protection. Sunglasses, smoked glass, and most filters are not safe for solar viewing. During the brief period of totality, when the Sun’s disk is completely covered, it is safe to look without filters. Outside of totality, use certified solar viewing glasses that meet the ISO 12312-2 standard or view indirectly, for example by projecting an image of the Sun onto a screen. If you use a telescope or binoculars, you must use a certified solar filter over the front aperture, never at the eyepiece. Check your eclipse glasses for damage before use and discard any that are scratched or torn.
Safe viewing checklist
- Use ISO 12312-2–compliant eclipse glasses or handheld solar viewers.
- Inspect filters for scratches or damage before use.
- Cover cameras, telescopes, and binoculars with certified solar filters on the front.
- Do not use solar filters on the eyepiece.
- Supervise children during eclipse viewing.
Photography and Equipment Tips
Capturing the eclipse safely requires appropriate gear. For smartphones, use the camera app with a solar filter or eclipse glasses held in front of the lens, or use a telescope with a certified solar filter and a proper adapter. Dedicated solar filters for cameras and telescopes must be securely mounted on the front of the device. During totality, when the Sun is fully covered, you can remove filters and take detailed shots of the corona, but replace filters immediately as the Sun begins to reappear. Use a sturdy tripod to avoid camera shake, and consider bracketing exposures to ensure you capture detail in both the corona and the darkened landscape. Do not look through an unfiltered viewfinder at any time except during totality.
Weather, Timing, and Planning
Cloud cover is a major factor in eclipse viewing, so it helps to monitor forecasts as the date approaches and to have a backup travel plan if your primary location is prone to rain. Arrive at your viewing location early to set up equipment and find a clear sightline toward the horizon if possible. Remember that traffic can be heavy along the path of totality, so plan your route and timing carefully. If you are outside the path of totality, you will still see a partial eclipse, but you will not experience the dramatic changes of twilight and corona visibility. Check local weather and cloud-cover forecasts for your exact location as the date nears. Joining an eclipse event or watch party can also provide access to experienced observers and reliable information.
Eclipse Science and Citizen Science Opportunities
Total solar eclipses offer a rare chance to study the Sun’s corona and the effects of sudden changes in light and temperature on the environment. Researchers often use eclipses to refine measurements of the corona’s structure and to test instruments that may one longer-term observing campaigns. Members of the public can participate in citizen science projects, such as documenting cloud cover, temperature changes, and wildlife behavior during the eclipse. By contributing observations to ongoing research efforts, you can help scientists collect data across a wide geographic area. Always follow project guidelines and use safe viewing and photography practices when participating.
Related Astronomical Eclipses and Cycles
Solar eclipses belong to repeating cycles that allow predictions centuries into the future. The primary cycle is the Saros cycle, which repeats eclipses with similar geometry about every 18 years, though the location on Earth shifts. The next total solar eclipse after the 2024 U.S. event will be in 2026 (in the Arctic and parts of Greenland) and 2027 (in Europe and North Africa). Solar eclipses can be total, annular, or partial depending on the distances between the Sun, Moon, and Earth at the time of New Moon. Understanding this context helps you place each eclipse in a long-term pattern and appreciate why not every New Moon produces a total eclipse.